cat·​e·​chol·​amine | \ ˌka-tə-ˈkō-lə-ˌmēn How to pronounce catecholamine (audio) , -ˈkȯ- \

Definition of catecholamine

: any of various amines (such as epinephrine, norepinephrine, and dopamine) that function as hormones or neurotransmitters or both

Examples of catecholamine in a Sentence

Recent Examples on the Web One hypothesis is that a surge of catecholamines, or stress hormones, are toxic to the heart. NBC News, 25 Sep. 2019 Physiologically, when women don’t feel safe in a birth environment, the levels of stress hormone catecholamine rise causing labor to slow or even stop. Mariko Zapf, Good Housekeeping, 16 Nov. 2017 If the data is perceived as something that causes angst, the adrenal gland produces a hormonal secretion that results in the release of catecholamines, especially norepinephrine and epinephrine. NBC News, 26 Oct. 2017 Caffeine prompts the release of natural compounds called catecholamines, including norepinephrine, a stress hormone that can speed the heart rate. Maggie Fox, NBC News, 15 May 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'catecholamine.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of catecholamine

1954, in the meaning defined above

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The first known use of catecholamine was in 1954

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Cite this Entry

“Catecholamine.” Dictionary, Merriam-Webster, Accessed 1 Dec. 2021.

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More Definitions for catecholamine


cat·​e·​chol·​amine | \ ˌkat-ə-ˈkō-lə-ˌmēn, -ˈkȯ- How to pronounce catecholamine (audio) \

Medical Definition of catecholamine

: any of various amines (as epinephrine, norepinephrine, and dopamine) that contain a dihydroxy benzene ring, that are derived from tyrosine, and that function as hormones or neurotransmitters or both

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